We have a boiler plate example for an inputbox replacement that’s a good start: GitHub - SketchUp/htmldialog-inputbox: UI::HtmlDialog example recreating UI.inputbox functionality in the SketchUp Ruby API
We have a boiler plate example for an inputbox replacement that’s a good start: GitHub - SketchUp/htmldialog-inputbox: UI::HtmlDialog example recreating UI.inputbox functionality in the SketchUp Ruby API